公开(公告)号：US09319341B2

公开(公告)日：2016-04-19

申请号：US14059412

申请日：2013-10-21

Applicant: STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Pierre Muller ,  Samuel Dubouloz

IPC: H04L12/863 ,  H04L12/841 ,  H04L12/879

CPC classification number: H04L47/6245 ,  H04L47/28 ,  H04L49/901

Abstract: A plurality of frames of data are transmitted over a serial interface in a manner that limits interference on the interface. This involves generating a pseudo-random number and asserting a read control signal at a moment in time, wherein a timing of the moment in time is influenced by the pseudo-random number. In response to the asserted read control signal, a frame of data is read from a data buffer. The read frame of data is then transmitted over the serial interface. A number of alternative embodiments are possible, such as embodiments in which buffer read operations are triggered based on the buffer fill level, and other embodiments in which buffer read operations are triggered by a timer. By using the pseudo-random number to influence the buffer read operations, timing coherency between the reading of frames is made low, thereby limiting interference.

Abstract translation: 通过串行接口以限制对接口的干扰的方式发送多个数据帧。 这涉及在时刻产生伪随机数并断言读控制信号，其中时刻的定时受到伪随机数的影响。 响应于断言的读取控制信号，从数据缓冲器读取一帧数据。 然后通过串行接口传输读取的数据帧。 一些替代实施例是可能的，例如基于缓冲器填充级别触发缓冲器读取操作的实施例，以及其中缓冲器读取操作由定时器触发的其他实施例。 通过使用伪随机数来影响缓冲器读取操作，使得读取帧之间的定时一致性变低，从而限制干扰。

公开(公告)号：US20150110123A1

公开(公告)日：2015-04-23

申请号：US14059412

申请日：2013-10-21

Applicant: STMICROELECTRONICS INTERNATIONAL N.V.

Inventor： Pierre Muller ,  Samuel Dubouloz

IPC: H04L12/863

CPC classification number: H04L47/6245 ,  H04L47/28 ,  H04L49/901

Abstract: A plurality of frames of data are transmitted over a serial interface in a manner that limits interference on the interface. This involves generating a pseudo-random number and asserting a read control signal at a moment in time, wherein a timing of the moment in time is influenced by the pseudo-random number. In response to the asserted read control signal, a frame of data is read from a data buffer. The read frame of data is then transmitted over the serial interface. A number of alternative embodiments are possible, such as embodiments in which buffer read operations are triggered based on the buffer fill level, and other embodiments in which buffer read operations are triggered by a timer. By using the pseudo-random number to influence the buffer read operations, timing coherency between the reading of frames is made low, thereby limiting interference.

Abstract translation: 通过串行接口以限制对接口的干扰的方式发送多个数据帧。 这涉及在时刻产生伪随机数并断言读控制信号，其中时刻的定时受到伪随机数的影响。 响应于断言的读取控制信号，从数据缓冲器读取一帧数据。 然后通过串行接口传输读取的数据帧。 一些替代实施例是可能的，例如基于缓冲器填充级别触发缓冲器读取操作的实施例，以及其中缓冲器读取操作由定时器触发的其他实施例。 通过使用伪随机数来影响缓冲器读取操作，使得读取帧之间的定时一致性变低，从而限制干扰。